FNDH 620 Exam 3 Pop Quiz Questions 100% Correct Verified 2024 Version

nicotaminamide, but not nicotinic acid, is the form required for the synthesis of nicotinamide adenine dinucleotide - false how are the recommended intakes of niacin expressed? (units) - niacin equivalents (mgs) bioavailability of biotin is near 0% from wheat - true intake of raw egg white may cause deficiency of - biotin which of the following is one of the main functions of vitamin B6 - transamination methionine cycle requires - all of the above (B6, B12, folate, niacin) which anemia is related to folate deficiency? - megaloblastic anemia to protect against birth defects, a higher RDA of folic acid has been suggested for pregnant women - true vitamin B12 is only available from ___________ products - animal why is the RDA of vitamin B12 so low? - A, B, and C (in the liver free cobalamin can be stored for years, little B12 in the body is degraded, whole body turnover is about 0.1% daily) high dietary folate may cure megaloblastic anemia caused by: - both A and B (folate deficiency, B12 deficiency)formation of retinol from B-carotene requires the presence of what B vitamin? - niacin dietary fat is not very important regarding the digestion and absorption of pre- and provitamin A forms - false within the nucleus, retinoic acid binds to ______________ - retinoid X receptors what is the principle transport vehicle for vitamin E in the blood? - lipoproteins Which mechanism has been proposed but not proven as vitamin E's principle function against chronic disease prevention? - anti-oxidation for which vitamin is the tolerable upper limit set because of increased tendency for bleeding? - vitamin E (because high doses of vitamin E increase the risk of bleeding) what is the chemical name for vitamin K in green plants? - phylloquinone as a coenzyme, vitamin K is required in the carboxylation of Gla proteins by converting glutamate residues to gamma-carboxyglutamate residues - true vitamin K deficiency is the most often observed in: - newborns which food group contributes the most calcium to our diet? - dairy the primary function of parathyroid hormone (PTH) is: - to enhance blood calcium levels by taking calcium from bone which 2 minerals are part of the bone crystal, hydroxyapatite? - calcium, phosphoru